# Cutting by the numbers, SFM/Chipload Calculations

**URL:** <https://forums.maslowcnc.com/t/cutting-by-the-numbers-sfm-chipload-calculations/13877>\
**Category:** No Judgement\
**Created:** [July 4, 2020, 12:09pm UTC](https://forums.maslowcnc.com/t/cutting-by-the-numbers-sfm-chipload-calculations/13877 "2020-07-04T12:09:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Blair](https://avatars.discourse-cdn.com/v4/letter/b/c37758/32.png) [@Blair](https://forums.maslowcnc.com/u/Blair)\
**Post date:** [July 4, 2020, 12:09pm UTC](https://forums.maslowcnc.com/t/cutting-by-the-numbers-sfm-chipload-calculations/13877/1 "2020-07-04T12:09:58Z")

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Is anyone else using the sfm/chip load calculations when setting their speeds?

Also does anyone know the maximum ips that can be achieved with the Maslow?

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**Author:** ![md8n](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/md8n/32/28197_2.png) [@md8n](https://forums.maslowcnc.com/u/md8n)\
**Post date:** [July 5, 2020, 4:47am UTC](https://forums.maslowcnc.com/t/cutting-by-the-numbers-sfm-chipload-calculations/13877/2 "2020-07-05T04:47:16Z")

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> [@Blair](#):
>
> Also does anyone know the maximum ips that can be achieved with the Maslow?

I asked this question before and there’s a link somewhere to that data (so hopefully someone remembers). However, from experience I’m getting around 1/2" (12.7 mm -ish) per second.

And tying that in with the other part of your question. In general you’ll want to drop your speed down to match the feed rate.